Electroluminescent display panel with anti-ultraviolet light material, method for manufacturing the same, and display apparatus

Abstract

An electroluminescent display panel, a method for manufacturing the same and a display apparatus are disclosed. The electroluminescent display panel includes: a silicon backplate; a light emitting device on the silicon backplate; a first sealing layer on a side of the light emitting device away from the silicon backplate; an adhesive layer on a side of the first sealing layer away from the light emitting device; and a color filter layer on a side of the adhesive layer away from the first sealing layer. The light emitting device includes a luminescent material, and the first sealing layer includes an anti-ultraviolet light material for preventing ultraviolet light from irradiating onto the luminescent material.

What is claimed is: 
     
       1. An electroluminescent display panel, comprising:
 a silicon backplate; 
 a light emitting device on the silicon backplate; 
 a first sealing layer on a side of the light emitting device away from the silicon backplate; 
 an adhesive layer on a side of the first sealing layer away from the light emitting device; and 
 a color filter layer on a side of the adhesive layer away from the first sealing layer, 
 wherein the light emitting device comprises a luminescent material, and the first sealing layer comprises an anti-ultraviolet light material for preventing ultraviolet light from irradiating onto the luminescent material; 
 wherein the anti-ultraviolet light material comprises an ultraviolet light converting material for converting the ultraviolet light into visible light; and 
 wherein the first sealing layer comprises:
 at least one light converting layer, the at least one light converting layer comprising the ultraviolet light converting material; and 
 an encapsulating layer comprising at least one organic encapsulating layer and at least one inorganic encapsulating layer, the at least one organic encapsulating layer and the at least one inorganic encapsulating layer being alternately disposed such that the encapsulating layer has a laminated structure, and 
 wherein the at least one light converting layer is disposed between any adjacent ones of the at least one organic encapsulating layer and the at least one inorganic encapsulating layer. 
 
 
     
     
       2. The electroluminescent display panel of  claim 1 , wherein the ultraviolet light converting material comprises: europium-4,7-phenyl-1,10-phenanthroline complex. 
     
     
       3. The electroluminescent display panel of  claim 2 , wherein a weight percentage of the europium-4,7-phenyl-1,10-phenanthroline complex in the light converting layer is proportional to a thickness of the light converting layer. 
     
     
       4. The electroluminescent display panel of  claim 1 , wherein an orthographic projection of the first sealing layer on the silicon backplate covers an orthographic projection of the light emitting device on the silicon backplate. 
     
     
       5. The electroluminescent display panel of  claim 1 , wherein the adhesive layer comprises an adhesive that is curable under an irradiation of the ultraviolet light. 
     
     
       6. The electroluminescent display panel of  claim 1 , further comprising a second sealing layer on a side of the color filter layer away from the adhesive layer, wherein the second sealing layer comprises an inorganic encapsulating material. 
     
     
       7. A display apparatus comprising the electroluminescent display panel of  claim 1 . 
     
     
       8. An electroluminescent display panel, comprising:
 a silicon backplate; 
 a light emitting device on the silicon backplate; 
 a first sealing layer on a side of the light emitting device away from the silicon backplate; 
 an adhesive layer on a side of the first sealing layer away from the light emitting device; and 
 a color filter layer on a side of the adhesive layer away from the first sealing layer, 
 wherein the light emitting device comprises a luminescent material, and the first sealing layer comprises an anti-ultraviolet light material for preventing ultraviolet light from irradiating onto the luminescent material; 
 wherein the anti-ultraviolet light material comprises an ultraviolet light converting material for converting the ultraviolet light into visible light; 
 wherein the first sealing layer comprises only an encapsulating layer, the encapsulating layer comprises at least one organic encapsulating layer and at least one inorganic encapsulating layer, the at least one organic encapsulating layer and the at least one inorganic encapsulating layer being alternately disposed such that the encapsulating layer has a laminated structure, and 
 wherein the at least one organic encapsulating layer comprises an organic encapsulating material and the ultraviolet light converting material. 
 
     
     
       9. A method for manufacturing an electroluminescent display panel, comprising:
 forming a light emitting device on a silicon backplate; 
 forming a first sealing layer on a side of the light emitting device away from the silicon backplate; 
 forming an adhesive layer on a side of the first sealing layer away from the light emitting device; and 
 forming a color filter layer on a side of the adhesive layer away from the first sealing layer, 
 wherein the light emitting device comprises a luminescent material, and the first sealing layer comprises an anti-ultraviolet light material for preventing ultraviolet light from irradiating onto the luminescent material; 
 wherein the anti-ultraviolet light material comprises an ultraviolet light converting material for converting the ultraviolet light into visible light; and 
 wherein the first sealing layer comprises:
 at least one light converting layer, the at least one light converting layer comprising the ultraviolet light converting material; and 
 an encapsulating layer comprising at least one organic encapsulating layer and at least one inorganic encapsulating layer, the at least one organic encapsulating layer and the at least one inorganic encapsulating layer being alternately disposed such that the encapsulating layer has a laminated structure, 
 wherein the at least one light converting layer is disposed between any adjacent ones of the at least one organic encapsulating layer and the at least one inorganic encapsulating layer. 
 
 
     
     
       10. The method of  claim 9 , further comprising:
 preparing the ultraviolet light converting material, wherein the preparing the ultraviolet light converting material comprises: 
 dissolving 4,7-diphenyl-1,10-phenanthroline and europium nitrate hexahydrate in ethanol; 
 forming a precipitate through uniform stir; 
 rinsing the precipitate with absolute ethanol, and drying the precipitate; and 
 dispersing the dried precipitate in a PVP ethanol solution, 
 wherein a weight percentage of the precipitate in the PVP ethanol solution is in a range of 0.5% to 1.5%.